EP 0697436 B1 19980610 - Thermoplastic compositions of atactic and syndiotactic polypropylene
Title (en)
Thermoplastic compositions of atactic and syndiotactic polypropylene
Title (de)
Thermoplastische Massen aus ataktischem und syndiotaktischem Polypropylen
Title (fr)
Composition thermoplastique contenant de polypropylène atactique et syndiotactique
Publication
Application
Priority
IT MI941728 A 19940809
Abstract (en)
[origin: EP0697436A1] Thermoplastic polymer compositions are disclosed which comprise the following components: (A) 1 to 99% by weight of an amorphous propylene polymer having the following characteristics: Ä eta Ü > 1 dl/g, % of syndiotactic dyads (r) - % of isotactic dyads (m) > 0, less than 2% of the CH2 groups contained in (CH2)n sequences wherein n >/= 2, Bernoullianity index = 1 +/- 0.2; and (B) 1 to 99% by weight of a propylene polymer having an essentially syndiotactic structure, optionally containing from 0.1 to 30% by moles of units deriving from alpha -olefins of formula CH2=CHR in which R is an hydrogen atom or an alkyl group having from 2 to 10 carbon atoms. The compositions of the invention are endowed with good elasto-mechanical properties and are suitable for the production of low-temperature-heat-sealing films.
IPC 1-7
IPC 8 full level
C08J 5/18 (2006.01); C08L 23/00 (2006.01); C08L 23/10 (2006.01)
CPC (source: EP KR US)
C08J 5/18 (2013.01 - EP US); C08L 23/10 (2013.01 - EP US); C08L 23/12 (2013.01 - KR); C08L 23/14 (2013.01 - KR); C08J 2323/10 (2013.01 - EP US); C08L 2205/02 (2013.01 - EP US); C08L 2207/12 (2013.01 - EP US); C08L 2207/14 (2013.01 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
AT BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0697436 A1 19960221; EP 0697436 B1 19980610; AT E167215 T1 19980615; CA 2155685 A1 19960210; CN 1126733 A 19960717; DE 69502893 D1 19980716; DE 69502893 T2 19981217; ES 2118480 T3 19980916; IT 1274606 B 19970718; IT MI941728 A0 19940809; IT MI941728 A1 19960209; JP H0859916 A 19960305; KR 960007678 A 19960322; US 5834562 A 19981110
DOCDB simple family (application)
EP 95112230 A 19950803; AT 95112230 T 19950803; CA 2155685 A 19950809; CN 95115874 A 19950809; DE 69502893 T 19950803; ES 95112230 T 19950803; IT MI941728 A 19940809; JP 20252295 A 19950808; KR 19950024458 A 19950808; US 51267495 A 19950808